Emlid Reach RS3 GNSS Receiver


The Emlid Reach RS3 is a multi-band RTK GNSS receiver for surveying, mapping, and navigation. It offers centimetre-level accuracy in about 5 seconds, and has a mobile app that enables you to control the RS3 receivers with iOS and Android devices.

Online Warehouse: Available

Auckland Click & Collect: Available

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  • Click & collect from Auckland & Christchurch stores
  • Local warranty, support and repairs


High-precision IMU - Tilt:RTK+2mm+0.3mm/°
Survey with under 20 mm precision at up to 60 degree tilt. Reach RS3 is calibration-free and works out of the box. The receiver is immune to magnetic disturbances, so metal objects and electronics don’t affect the accuracy.

Get a Fix in 5 seconds
The receiver gets a cm-accurate solution in ~5 seconds and maintains robust performance even when the sky is partially obstructed or the unit is tilted. Signals tracked: GPS/QZSS, GLONASS, BeiDou, and Galileo.

18 hours of work with tilt compensation
The industrial-grade battery can endure up to 22 hours of logging or 18 hours of work as an RTK rover with tilt compensation. For uninterrupted multi-day operations, simply connect a power bank via USB-C.

RINEX logging and PPP support
Reach RS3 records raw data in the RINEX format for post-processing. Use our free PPK software, Emlid Studio, or any other software with RINEX support. Logs are also compatible with OPUS, AUSPOS, and PPP services.

Built-in LTE modem
Insert a SIM card into Reach RS3 and let it broadcast or receive corrections via NTRIP.

Rugged and compact
The polycarbonate body coated with elastomer makes Reach RS3 impact- resistant and ready for harsh conditions. The receiver is dustproof and waterproof to IP67 with an operating temperature of -20° to 65° C (-4° to 149° F).


Get corrections from CORS, Reach, or third-party base

Work in RTK with VRS or a single baseline CORS network. You can also connect another GNSS receiver with RTCM3 support using Emlid NTRIP Caster.

Dual-band radio

868/915 MHz
Gets or sends corrections between two Reach receiver—perfect for areas with no internet coverage.

450 MHz
Gets corrections from bases with radios that transmit TRIMTALKTM 450S—a great option to mix and match receivers in your fleet.


Emlid Flow
The Emlid Flow mobile app manages all field-related tasks, including receiver configuration, RINEX logging, data collection, and stakeout.
• Tilt compensation
• Points and lines
• Coding
• Localization
• Background WMS/WMTS maps
• Sync with up to 3 devices


Emlid Flow 360
The cloud-based Emlid Flow 360 allows you to access your survey data in a browser and easily prepare, manage, and export your projects.
• Creating custom code libraries
• Adding WMS/WMTS layers
• Satellite map
• Export and import of survey data
• Project management and data sync

The basic features are free. Professional survey tools are available with the Survey plan. Upgrade your Emlid Flow and Flow 360 with a single subscription.

Product Specifications

Precision: Static - H: 4 mm + 0.5 ppm V: 8mm+1ppm
PPK - H: 5mm+0.5ppm V: 10mm+1ppm
RTK - H: 7mm+1ppm V: 14mm+1ppm
Convergence time: ~5 s typically
Tilt compensation: RTK + 2 mm + 0.3 mm/°
Signals: GPS/QZSS L1C/A, L2C, GLONASS L1OF, L2OF, BeiDou B1I, B2I, Galileo E1-B/C, E5b
Number of channels: 184
Update rate: Up to 10 Hz

Dimensions: 126 x 126 x 142 mm
Weight: 950 g
Operating temperatures: -20 to +65 °C
Ingress protection: IP67

Autonomy: 8 hrs as an RTK rover with tilt compensation, 22 hrs of logging
Battery: Li-Ion 5200 mAh, 7.2 V, 37.44 Wh
Charging: USB-C 5 V, 3 A

LoRa radio: Transmit and receive
Frequency range - 868/915 MHz
Power - 0.1 W
Distance - Up to 8 km
UHF radio: Receive-only
Frequency range - 410–470MHz
Protocol - TRIMTALK 450S*
Modulation type - GMSK
LTE modem: Regions - Global
Bands - FDD-LTE: 1,2,3,4,5,7,8,12,13, 18, 19, 20, 26, 28, 66
TD-LTE: 38, 40, 41
UMTS (WCDMA/FDD): 1,3,2,4,5,6,8,19
Quad-band, 850/1900, 900/1800MHz
SIM card - Nano-SIM
Wi-Fi: 802.11b/g/n
Bluetooth: 4.0/2.1 EDR
Ports: RS-232, USB-C
Protocols: Corrections - NTRIP, RTCM3 Position output - NMEA, LLH/XYZ
Data logging: RINEX, NMEA, LLH/XYZ, UBX
Internal storage: 16 GB

In the box

Reach RS3 × 1
LoRa/UHF antenna × 1
USB cable × 1
Carrying case with strap × 1
Free 3-month subscription to the Emlid Flow Survey Plan × 1



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Warranty Details

Standard warranty

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